[INFO] fetching crate doublets-decorators 0.1.0-alpha.3...
[INFO] testing doublets-decorators-0.1.0-alpha.3 against 1.90.0 for beta-1.91-3
[INFO] extracting crate doublets-decorators 0.1.0-alpha.3 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate doublets-decorators 0.1.0-alpha.3
[INFO] finished tweaking crates.io crate doublets-decorators 0.1.0-alpha.3
[INFO] tweaked toml for crates.io crate doublets-decorators 0.1.0-alpha.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate doublets-decorators 0.1.0-alpha.3 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 42 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded leak_slice v0.2.0
[INFO] [stderr]   Downloaded platform-data v0.1.0-beta.3
[INFO] [stderr]   Downloaded platform-mem v0.1.0-pre+beta.2
[INFO] [stderr]   Downloaded doublets v0.1.0-pre+beta.15
[INFO] [stderr]   Downloaded platform-treesmethods v0.1.0-aplha.2
[INFO] [stderr]   Downloaded platform-num v0.1.0-aplha.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52d4c30cd24f62a829499e38508d65deaf37ed150943a3e726f1dd4bb9cbd9cc
[INFO] running `Command { std: "docker" "start" "-a" "52d4c30cd24f62a829499e38508d65deaf37ed150943a3e726f1dd4bb9cbd9cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52d4c30cd24f62a829499e38508d65deaf37ed150943a3e726f1dd4bb9cbd9cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52d4c30cd24f62a829499e38508d65deaf37ed150943a3e726f1dd4bb9cbd9cc", kill_on_drop: false }`
[INFO] [stdout] 52d4c30cd24f62a829499e38508d65deaf37ed150943a3e726f1dd4bb9cbd9cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51523f761ae55a7cb872b38eb055b7672f9f34b5c2bbf84d1f88ab5fda824427
[INFO] running `Command { std: "docker" "start" "-a" "51523f761ae55a7cb872b38eb055b7672f9f34b5c2bbf84d1f88ab5fda824427", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling leak_slice v0.2.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling platform-num v0.1.0-aplha.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/platform-num-0.1.0-aplha.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(step_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/platform-num-0.1.0-aplha.1/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `platform-num` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "51523f761ae55a7cb872b38eb055b7672f9f34b5c2bbf84d1f88ab5fda824427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51523f761ae55a7cb872b38eb055b7672f9f34b5c2bbf84d1f88ab5fda824427", kill_on_drop: false }`
[INFO] [stdout] 51523f761ae55a7cb872b38eb055b7672f9f34b5c2bbf84d1f88ab5fda824427